Molding-machine.



E. H. RYON.

MOLDING MACHINE.

APPLIGATION FILED JUNE 11, 1000.

Patente 001;. 12,1909.

2 SBEETS-SHEET 1.

E. H. RYON.

MOLDING MACHINE.

APPLIcATIoN FILED JUNE 11, 1909.

936,569. Patented ocn.12,1909.

2 SHEETS-SHEET '2.

.Tam

ANDREW. B, GRAHAM co., moro-umoammms. WASHINGTON. D. t:

'entre sa s nir c EPPA H. RYON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0CROMPTON &, KNOWLES LOOM WORKS,`A CORPORATION OF MASSACHUSETTS.

MOLDINGr-MACI-IINE.

essence.

Specification of Letters Patent.

Patented Get. 12, 1969.

Application mea June 11, 1909. serial No. 501,518.

To all whom it may concern:

Be it known that I, EPPA H. RYoN, a citizen of the United States,residing at Worcester, in the county of Worcester and Statev ofMassachusetts, have invented certain new and useful Improvements inMolding-Machines, of which the followingis a specilication.

My invention relates to molding machines, and particularly toimprovements in a rock-over molding machine.

The object of my invention is to improve upon the construction of amolding machine of the class referred to, and more particularly toprovide a leveling or evening mechanism for the mold, which mechanism isof simple construction and operation, and by means of which the moldboard will have a solid and even seat.

My invention consists in certain novel features of construction of myimprovements as will be hereinafter fully described.

ll have only shown in the drawings parts of a rock-over molding machinewith my improvements applied thereto, suflicient to enable those skilledin the art to understand the construction and operation.

Referring to the drawings :-Figure 1 is a side view of a molding`machine with my improvements applied thereto, looking in the directionof arrow a, Fig. 2.V Onthe upper table is shown a mold or iiask, and thebroken lines show the table with the flask in its rock-over position.Fig. 2 is a front vie-w of the machine shown in Fig. 1, looking in thedirection of arrow b, same ligure. The mold shown in Fig. 1 is not shownin this ligure. Fig. 3 is a central cross section, on line 3, 3, Fig. 2,looking in the direction of arrow a, same ligure. Fig. ly is, on anenlarged scale, the leveling mechanism, de-l tached, looking in thedirection of arrow c, Fig. 5; some of the parts are broken away or leftout in this figure. Fig. 5 is a cross section, on line 5, 5, Fig. t,looking in the direction of arrow d, samegure, and shows some partswhich are left off in said Fig. 4:, and, Fig. 6 shows an end postdetached, with an adjustable head or cap in `a different p0- sition. y f

In the accompanying drawings, 1 are the side or end frames, 2 is anupper cross girt, and 3 and t are two transverse rods, see Fig. 2.

rThe upper portion of the end frames 1 ceive the gudgeons or Journals 5on the plates 5, which are rigidly secured by bolts 6 to the extensions7 on the upper table 7 see Fig. 3. The table 7 in its normal position isadapted to rest on the cross bar 2, see Fig. 3, to receive the mold 8which is secured to the table 7. When the upper table 7 is rocked overto the position shown by broken lines in Fig. 1, an adjusting screw orbolt 9, shown by broken lines in Fig. 1, acts to hold said table inposition. rThe upper table 7 ispivotally supported near its center onthe over-hanging arms 1 on the frame 1, and is therefore easily rockedover, after the mold is secured thereto.

The side frames 1 have brackets 1", see Figs. 2, and 3, for guide blocks10, which are adapted to receive the vertically extending flanges 12 onthe supports 12, to act as guides for said supports. Each flange 12 hasan opening 12 therein, through which extends an arm or lever 13, havingits hub 13', see Fig. 3, secured byaset screw 14 on a transverse' shaft15, which is loosely mounted in bearings on the side frames 1. Extendingrearwardly from the hub 13 is an arm 13, to receive weights, not shown,to counterbalance the lower mold table.

A handle or lever 16, see Fig. lfhas its attached end forked, and itshub 16 on said end secured on the shaft 15 by a set screw 17. rThe otherend of the lever 16 has a handle 16, and also a releasing handle 18attached thereto, to lock the handle 16 in its desired position, bycausing a spring-actuated lock rod 18', of usual construction, to enterone of the notches 19 in a segment 19, which is pivotally mounted on theshaft 15, and adjustably secured in the desired position by a nut on ascrew or bolt 20, which passes through an elongated cam-shaped slot 19"in the plate 19 and is secured in the side frame 1.

The leveling or evening device for the mold consists in this instance ofthe frame 21, which is preferably made open through its central part, asshown in Fig. t, and is grooved or channeled to furnish a chamber 21,see Figs. 4L and 5. A cover or plate 22 extends over the channeled frame21, and is secured thereto preferably by screws 22, to form a top orcover for the chamber 21. The frame 21 is supported upon and attaehed tothe upright supports l2, see Fig. 2, to4 move with said supports. On theplate 22 forming the cover tor the chambered frame 2l, at each cornerthereof, in this instance is a boss 22, see F ig. 5, which boss ispreferably made tapering. nto each boss 22 extends and is secured thetapered end of a. cylindrical post 23. rlhe frame 2l has the bosses 2lto loosely receive the vertically extending spindle 24, see F ig. 5,which has secured thereon, on its upper end, the top piece or cap 25. Acylindrical sleeve 25 extends down from the cap 25, and is securedthereon, and tits over the upper end of the cylindrical post 23, for thepurpose of preventing sand or other material getting within thecylindrical posts. lThe caps 25, attached to the spindle 24C, formlaterally7 spaced non-depressible and rotatable members for supportingthe mold board S, see Fig. l.

A sprocket wheel 26 is loosely mounted on each spindle 24, one at eachcorner of the frame 2l, and said sprocket wheels are connected by asprocket chain 27. lOne of the sprocket wheels 26 has its hub 2Gextending downwardly, see F ig. 5, to receive the hub 28 on an operatinghandle 2S, which in this instance is provided with a spring actuated pin28, which is adapted to engage the inclined projection 21', shown bybroken lines in Fig. 4C, on the underside ot the frame 2l, when thehandle 28 is moved by hand, to hold and lock said handle in eitherposition.

A helically coiled torsion spring 29 encircles the spindle 2li, see Fig.5, and the lower end of said spring is connected to the hub et thesprocket wheel 26, and its upper end is connected to the cap 25. rlheupper end of the post 23'is made inclined, and has a notch 23 therein,see Fig. 6. The lower end of the cap 25 is also made inclined, and hasan extension 25 thereon, to enter the notch 23 in the cylinder 23.

By reason of the inclined contiguous surfaces of the post 23 and the cap25, when the handle 2S is turned in the direction indicated by arrow a',Fig. t, the torsion spring 29 acts to move the cap 25 along the upwardlyinclined edge on the upper end of the post 23, and raise the cap 25, asshown in Fig. 6, until said cap, which preferably has a pointedextension 25 thereon, engages the mold board 8a. Through the sprocketchain 2T all elfr the caps 25 are turned in one direction, or the other,and act to level the mold board, and after the mold board is leveled,the locking ot the operating handle 28, acts to hold all of the caps intheir adjusted position and form a rigid support for the mold board. Theframe 21 is raised or lowered under the mold board, through theoperation ot the handle 1G.

It will be understood that the details ot construction of myimprovements may be varied it' desired.

Having thus described my invention, what l claim as new and desire tolsecure by Letters Patent is:

l. In a molding machine, laterally spaced non-depressible members forsupporting the mold board, and means for raising and lowering saidmembers in a vertical plane, to engage with and be disengaged trom themeld board.

2. In a molding machine, laterally spaced non-depressible members forsupporting the mold board, and means for simultaneously raising andlowering all of said members, to engage with, and be disengaged trom themold board.

In a` molding machine, laterally spaced rotatable members tor supportingthe mold board, and means tor raising said members to engage the moldboard.

4. In a molding machine, laterally spaced rotatable members forsupporting the mold board, and means for rotating said members.

5. In a molding machine, laterally spaced rotatable members iorsupporting the mold board, and a spring connected with each member,through which spring` said member is rotated.

G. In a molding machine, a supporting trame carrying laterally spacednon-depressible members, and having an up and down movement in avertical plane, and means for raising and lowering said supportingframe.

7. In a molding machine, a frame having rigid over-hanging arms, a rockover table pivotally supported near its center on said arms, avertically moving table, and means for moving said last mentioned tablein a vertical plane.

EPPA H. RYON.

litnesses JOHN C. DEWEY, MINNA Haas.

